| Cowan's Lady 2 Dun 1953 0072262 | Rey Del Poblano Brown 1950 0031740 | Rey Del Rancho Chestnut 1944 0007340 | Ranchero Chestnut 1933 0000215 | Solis Unknown Unknown U0079870 |
| Borega Unknown Unknown U0068696 | ||||
| Panda de la Tordia Chestnut 1936 0006472 | Ranchero Chestnut 1933 0000215 | |||
| Panda de Tordilla Unknown Unknown U0077661 | ||||
| China Poblana S2 Bay 1937 0000131 | Sudden Change Unknown 1933 T0143792 | Chicaro Bay 1923 T0054551 | ||
| Unknown Mare TB 18 Unknown 1888 T0520702 | ||||
| Martina 108 Bay 1923 0000109 | Old Sorrel Chestnut 1915 0000209 | |||
| Mare by Martin's Best Unknown Unknown U0075571 | ||||
| Lady Cowan 2 Dun 1950 0072254 | Blackburn Dun 1927 0002228 | Yellow Jacket Unknown Unknown U0081674 | Little Rondo Unknown Unknown U0075570 | |
| Barbee Dun Unknown Unknown U0074789 | ||||
| Siss Unknown Unknown U0079663 | Peter McCue Bay 1895 U0077937 | |||
| Unknown Mare Unknown Unknown 0555555 | ||||
| Cowan Mare Unknown Unknown U0069865 | Unknown Sire Unknown Unknown 0444444 | Unknown Sire Unknown Unknown 0444444 | ||
| Unknown Mare Unknown Unknown 0555555 | ||||
| Unknown Mare Unknown Unknown 0555555 | Unknown Sire Unknown Unknown 0444444 | |||
| Unknown Mare Unknown Unknown 0555555 |